Citronic D1000 Manual

Citronic Modtager D1000

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D1000

CLASS-D POWER AMPLIFIER

Order ref: 172.110UK

User Manual

Version 1.0

Caution: Please read this manual carefully before operating

Damage caused by misuse is not covered by the warranty

172.110UK User Manual

Introduction

Thank you for choosing a Citronic D1000 power amplifier as part of your sound reinforcement system. Our new class-D

circuit design provides an efficient amplifier within a compact and lightweight form factor. Please read this manual fully

and follow the instructions to achieve the best results from your amplifier and to avoid damage through misuse.

Warning

To prevent the risk of fire or electric shock, do not expose any of the components to rain or moisture.

If liquids are spilled on the casing, stop using immediately, allow unit to dry out and have checked by qualified personnel

before further use. Avoid impact, extreme pressure or heavy vibration to the case.

No user serviceable parts inside – Do not open the case – refer all servicing to qualified service personnel.

Safety

• Check for correct mains voltage and condition of IEC lead before connecting to power outlet.

• Ensure speaker leads are good condition with no shorted connections or damaged plugs.

• Check that the impedances of speaker loads do not exceed the minimum stated load for the amplifier.

• Do not allow any foreign objects to enter the case or through the ventilation grilles.

Placement

• Keep out of direct sunlight and away from heat sources.

• Keep away from damp or dusty environments.

• When rack-mounting, ensure adequate support for the base of the amplifier and firm fixings for the front.

• Ensure adequate airflow and do not cover cooling vents at the front and rear of the amplifier.

• Ensure adequate access to controls and connections.

Cleaning

• Use a soft cloth with a neutral detergent to clean the casing as required.

• Use a vacuum cleaner to clear ventilation grilles of any dust or debris build-ups.

• Do not use strong solvents for cleaning the unit.

Front Panel

Power on/off switch

SIGNALpresent indicators

Cooling vents – do not cover or obstruct

AUDIO PROTECT indicator

POWER on indicator

Audio LIMIT indicators

POWER PROTECT indicator

CH.B output level control

CH.A output level control

10.

Amplifier operating mode LEDs

Rear Panel

11.

Input SENSITIVITY switch 0.775V / 1.00V / 1.44V

17.

Cooling fan vents – do not cover or obstruct

12.

Amplifier MODE switch – Bridge / Stereo / Parallel

18.

CH.B output - SPK connector

13.

75Hz LOW CUT filter on/off switch

19.

BRIDGE mono output - SPK connector

14.

CH.A+B signal link output (XLR balanced/unbalanced)

20.

CH.A output - SPK connector

15.

GROUND Lift switch

21.

IEC mains power inlet & fuse holder

16.

CH.A+B signal input (XLR balanced/unbalanced)

172.110UK User Manual

Operation

Connect speaker cabinets to channel outputs (18, 20) using good quality Speakon

leads.

(all speaker outputs from the D1000 are wired to pins 1+/1-)

A single 8Ω or 4Ω speaker may be connected to each channel or 2 x 8Ω speakers connected in parallel may be connected

to either output as a 4Ω pair. WARNING – The combined load on either channel must be no lower than 4Ω.

Also ensure that the speaker cabinets can handle the power output from the amplifier based at that impedance.

The rear panel has a MODE switch (12), which determines the way that the amplifier operates, indicated by 3 LEDs on

the front panel (10). The standard operating mode is STEREO, with each input feeding its relevant speaker output.

PARALLEL mode sums both inputs together in mono so that each amplifier channel receives a mix of both inputs.

Alternatively, both channels can be combined to drive a single load at higher power by selecting BRIDGE mode. In this

mode, the input is on channel A and the output is from the BRIDGE output SPK connector (19).

WARNING – The minimum load for BRIDGE mode is 8Ω.

Above the MODE switch is a SENSITIVITY switch (11), which has 3 settings for different input levels.

The standard setting is 0.775V, with further settings for 1.00V and 1.44V - higher settings reduce the input sensitivity.

Above the CH.B Link Output XLR is a 75Hz LOW CUT filter switch (13). When active, this filter removes frequencies below

75Hz to avoid wasted power in full range cabinets that cannot reproduce these low frequencies.

Above the CH.A Link Output XLR is a GROUND switch (15) which can isolate the signal ground from mains Earth.

This can sometimes help to cure mains hum caused by Earth loop connections. If there is ‘hum’ in the audio, try the LIFT

setting. The normal setting for this is GND, where both signal ground and mains Earth are connected.

Connect each signal input from mixer or other line level source to the CH.A and CH.B inputs (16) on the rear panel using

good quality signal leads. Depending on output level of the mixer, select the appropriate sensitivity on the rear panel.

Wiring for balanced or unbalanced inputs are as follows…

Signal hot +

Signal cold -

Ground (GND)

Unbalanced wiring

Pin 2

Pin 3

Pin 1

Pin 3 + Pin 1 combined to ground

Each channel input also has a corresponding XLR link output (14) for linking onto further amplifiers, as necessary.

XLR inputs and link outputs for each channel are wired in parallel, allowing signal to be cascaded over several amplifiers.

Connect the amplifier to a mains supply (21), ensuring the IEC lead is earthed, in good condition and connected securely.

With CH.A + CH.B controls (5, 9) turned fully down, switch on the power to the amplifier (1). The power indicator will

light (3). This unit has a “soft-start” function which makes some checks before engaging power to the amplifiers, which

may take a few seconds.

With the mixer (or other signal source) levels turned down, gradually increase the amplifier’s CH.A + CH.B controls to the

required level (normally full) and then gradually increase the signal level from the mixer or sound source until sound can

be heard through the speakers and then continue increasing up to the required level.

Each channel has LED indicators to show when the signal (6) is present and operation of the inbuilt audio limiter (8),

which engages automatically when the output reaches the peak power level to help avoid overload to the speakers.

Additional LEDs indicate operation of the internal protection circuitry for the Power supply (4) and the Audio circuitry (7)

When either of these LEDs is lit, this means that there is a fault in the system and the amplifier has shut it down to

protect itself and other connected equipment. Switch the power off and disconnect other equipment before re-checking

connections and equipment.

If the PROTECT LEDs stay lit, refer the amplifier to a qualified service engineer.

Before powering down, turn the channel gain controls fully down to avoid loud noises when powering down.

172.110UK User Manual

Specifications

Power supply

200-240Vac, 50/60Hz (IEC)

Fuse

T10AL 250V

Output: RMS @ 4Ω

2 x 500W

Output: RMS @ 8Ω

2 x 300W

Bridge power: RMS @ 8Ω

1000W

Amplifier: construction

Class-D

Protection

Short/open circuit, thermal, RF, DC fault, on/off mute, active inrush limiting.

Frequency response

20Hz-20KHz ±0.5dB

THD +N

0.20%

S/N ratio

-95dB

Damping factor

>700

Input sensitivity

0.775V - 1.00V – 1.44V switchable

Input impedance

20KΩ (balanced),10KΩ (unbalanced)

Dimensions

482 x 245 x 44 mm (1U)

Weight

4.2kg

Troubleshooting

No power light on

Ensure IEC inlet is connected to mains and lead is in good condition

Ensure mains outlet is switched on

Power and Mode lights on but no other

LEDs and no output

Check input signal and connection leads

Ensure channel gain controls are not turned fully down

Power, Mode and Signal LEDs are lit

but no output

Check speaker cabinets are in good working order

Check speaker leads are in good condition and connected properly

PROTECT LED is lit and there is no

output

Switch off and disconnect from mains

Check speakers are in good working order and not shorted out (using a multi-

tester)

After checking all connected items, power up again

If still in Protect Mode, switch off again and refer to qualified service personnel

Ensure cooling vents are clear and amplifier is not overheated

Output is very distorted and LIMIT

LEDs are lighting continually

Check the speaker impedance is not below 4Ω per channel (8Ω if bridged)

Turn down the input level from audio source

Switch the SENSITIVITY to a higher voltage

Turn down channel output level controls

Output is working but at very low level

Ensure input source is at the correct line level

Switch the SENSITIVITY to a lower voltage

Increase input level from audio source

Turn up channel output level controls

Disposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or

Electronic equipment and should not be disposed with other household or commercial waste

at the end of its useful life. The goods must be disposed of according to your local council guidelines.

AVSL Group Ltd. Unit 2-4 Bridgewater Park, Taylor Rd. Manchester. M41 7JQ

AVSL (EUROPE) Ltd, Unit 3D North Point House, North Point Business Park, New Mallow Road, Cork, Ireland

Produkt Specifikationer

Mærke:	Citronic
Kategori:	Modtager
Model:	D1000
Tænd-/slukkontakt:	Ja
Vekselstrømsindgangsspænding:	220 - 240 V
Vekselstrømsindgangsfrekvens:	50 - 60 Hz
Bredde:	482 mm
Dybde:	245 mm
Højde:	44 mm
Vægt:	3930 g
Produktfarve:	Sort
Forbindelsesteknologi:	Ledningsført
Lyd-output kanaler:	- kanaler
Formål:	Optræden/scene
klirfaktor (THD):	- %
Signal/støjforhold:	- dB
Forstærker klasse:	D
Spidseffekt pr. kanal:	- W
Højttalere tilslutningstype:	XLR
XLR udgående:	1
XLR indgang:	Ja
RMS udgangseffekt pr. kanal (4 Ohm):	500 W
RMS udgangseffekt pr. kanal (8 ohm):	300 W
Rackkapacitet:	1U
Indgangsfølsomhed:	1.44 mV
Bridge-mode effekt pr. kanal (8 ohm):	1000 W
Sikringsmærkning:	T10A